Amazon.com: Lanzar 6.5” Car Subwoofer Speaker - Black Non-Pressed Paper Cone, Aluminum Voice Coil, 4 Ohm Impedance, 600 Watt Power and Foam Edge Suspension for Vehicle Audio Stereo Sound System - MAXP64 : Electronics
FIERCE 6 Inch Subwoofer | 6.5 Inch Car Subwoofers | 200 Watts RMS – TORO AUDIO
Rockville W65K9D4 6.5" 1000w Car Audio Subwoofer Dual 4-Ohm Sub CEA Compliant